JPH04173545A - Crate for transportation of rubber block or sheet - Google Patents

Abstract

PURPOSE: To easily stack and to telescope an empty wooden crate by joining with a hinge the crate having one bottom face, a side wall extending upward and outward and ending with a rim, and at least one support member joined to the rim with a hinge. CONSTITUTION: This wooden crate 1 comprises a framework having a wholly L-shaped cross section comprising a support 2 and a bottom face member 3, and a rim 4 connects the top end of the support 2. The side part of the wooden crate is made of a wall structure 9, and the wall structure 9 is made of a line of flat bars positioned practically vertically. The line of the bars is separated by a horizontal bar extending between support members 2 on each side of the wooden crate 1. A hinge connection support member 12 is provided in a rim 4 near each of the four corners of the wooden crate 1. The L shape cross section member 2 absorbs a load somewhat, and prevents the distortion of the rim 4 when a big load is applied on the wooden crate.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a framed wooden box for transporting blocks or sheets of rubber or the like by sea, rail or air.

BACKGROUND OF THE INVENTION Traditionally, rubber sheets or blocks are packaged in wooden framed crates. These framed wooden boxes complied with 1 International Packaging Standard. i.e. approximately 700 am long x
It must be large enough to accommodate 30 to 36 rubber blocks or sheets manufactured with dimensions of 3551 cm wide x 180 mm thick. Since the weight of one such block or sheet is approximately 33 kg to 35 kg, each framed crate is required to withstand 1 ton to 1.26 ton of packaging dunnage. Therefore, the overall dimensions of the wooden frame box are approximately 1100 mm high x 1130 mm wide x 1447 mm long.

A wooden box frame that is sturdy enough to support the dunnage and withstand the forces applied during sea transportation and hand washing at ports is
Requires large amounts of lumber.

This means that the volume of the timber itself significantly increases the volume required in the hold to accommodate the crates and their cargo, with the required volume exceeding the volume of the cargo itself. This obviously has the disadvantage of limiting the amount of cargo that can be transported at any given time in the framed crate. Framed crates are normally disposed of at their destination port. This is because it is not economical to return empty wooden crates from the port of destination to the port of loading. The reason for this is that the crates occupy the same amount of hold space on the return route as on the departure route.

One object of the present invention is to provide a framed crate for use in transporting cargoes of rubber and the like, which framed crates are vertically aligned with other identical framed crates containing the cargo. They can be stacked in stacks and transported from the loading port, and when a wooden frame is empty, it can be nested with another empty identical wooden box and sent back to the loading port economically.

British Patent Publication No. 2180820 (LAM) discloses a nestable frame wooden box for packaging blocks or sheets of rubber. The bottom of the crate preferably includes retractable members that extend laterally to provide additional stability and support for stacking another loaded crate on top.

The present invention recognizes that if movable support members are attached to the rims of the crates, filled crates will be easier to stack and empty crates will be easier to nest. It is based on

(Means for Solving the Problems and Operations/Effects) According to one aspect of the present invention, a framed wooden box is provided for the above-mentioned purpose, and the framed wooden box has one bottom surface extending upwardly and outwardly. and having a side wall terminating in the rim, at least one support member connected to the rim by a hinge, the support member connected by the hinge being such that when the frame crate is loaded, said member 1 from a first condition in which the same loaded crate extending towards the opposite side rests on the rim of said crate and said support members help support the overlying crate; A member extends outwardly and downwardly from the rim to nest the upper empty frame crate into said frame crate such that the bottom surface of said upper frame crate is proximate to the bottom surface of said frame crate. It can be pivoted to a second state where it becomes.

Preferably, there is a plurality of hinged support members, each hinged support member being located at or near a corner of the framed wooden box, which is preferably rectangular in cross section. The rim is preferably rectangular in cross section. The hinged support member desirably consists of a support blade hingedly mounted between a pair of supports of substantially the same cross-sectional shape as the rim. The support blade is preferably hinged about an axis parallel to the longitudinal axis of the rim, and in the second position the support blade is substantially vertical and extends outwardly and between the supports. capable of extending downward;
The support blades do not extend substantially laterally outwardly from the sides of the framed crate.

In another aspect, the present invention provides a vertical column or stack of loaded framed wooden boxes according to the present invention, each framed wooden box containing a block or sheet of rubber, the above-mentioned rubber is allowed to settle until its height is lower than the rim of the individual framing crate; furthermore, the hinged support member is in a first state extending towards the center of the framing crate; The bottom surface of each stacked crate above the top of the load rests on the hinged support member of the crate below.

Preferably, the framed wooden box is such that when one loaded framed wooden box is placed inside another framed wooden box, the rim of the framed wooden box containing the other framed wooden box is Dimensions shall be such as to provide lateral support for the framed wooden box in which it is placed.

In another aspect, the present invention places the hinged connection support member in a second state, fills the framed wooden box with rubber blocks or sheets, allows the load to settle until the number of cylinders is completed, and then removes the hinged connection member. in the first condition and further placing another identical framed wooden box on top of the framed wooden box such that the bottom side of the upper framed wooden box is in contact with the hinged support member of the lower framed wooden box. Provides a method for vertical stacking.

It is an advantage of the present invention that the time required for the rubber to settle is approximately 2 to 4 hours, depending on the shape of the frame crate.

In another aspect, the present invention provides vertical stacking of empty framed crates, in which one framed crate is housed in another framed crate, and each framed crate has a hinged support. The member is in a second state, where there is a space between the bottom of the upper framed crate and the floor of the lower framed crate, and the upper framed crate is at substantially the same height as the rim height. The only thing that comes out is the framed wooden box below.

This packing density increases by allowing more empty frame crates to be loaded into a given spatial volume of the hold.
To make the cost of returning an empty framed wooden box more economical.

Preferably, the framed wooden box has side walls formed of flat bar members, so that the framed wooden box will be able to withstand even if the flat bars become slightly damaged or bent during use. This has the advantage that the nesting of the wooden frame box is not hindered. The side walls are preferably openworked to reduce the total weight of the crate to about 85 kg, which is comparable to the weight of a wooden crate.

Legs may be provided near each corner of the bottom (the spacing between each leg is such that the forks of a forklift truck can fit between them).

The height of the rim is preferably substantially the same as the height of the legs, so that when one frame crate is nested within another frame crate, the nested frame crate is It protrudes from the box by essentially the height of the rim.

The framed wooden box of the present invention has the advantage that its hinged connection support member can be easily moved with one hand from the second state, which allows stacking of the framed wooden boxes, to the first state. In the first state, the frame wooden boxes can be nested, resulting in maximum packing density.

(Example) The present invention will be described below with reference to the attached drawings below.
This will be further explained using examples.

The framed wooden box 1 consists of a framework of generally L-shaped cross-section members consisting of columns 2 and a bottom member 3.

A rim 4 connects the upper ends of the struts 2. As for rim 4.

It may be in the form of a plate or similar with a height of 65 mm.

A corner gusset 5 is provided between the column 2 and the rim 40 for reinforcement. The framed wooden box has a rectangular cross section.

The height is a truncated pyramid, that is, it increases from the base upwards,
One framed crate is nested within another framed crate as described below.

The frame box has a bottom surface 7 which is substantially flat and made of metal or strong plastic material with a thickness of approximately 2 mm. Legs 8 are provided at each corner of the wooden frame box 1. Although not shown, the forks of a forklift truck can be passed under the bottom surface 7 and between a set of legs 8 on either side of the framed crate. Therefore, the framed wooden box 1 can be lifted by a forklift truck without having to consider the orientation of the framed wooden box. FIG. 7 is a perspective view of one leg 8. FIG.

The height H of the leg 8 is preferably slightly greater than the thickness of the fork of the forklift truck and the width W of the leg 8 is greater than the width W of the corresponding blade 14 as described below.
can be placed on the surface 21 of.

The sides of the framed wooden box consist of wall structures 9, which are formed by rows of substantially vertically arranged flat bars. The rows of bars are separated by horizontal bars 1o extending between the support members 20 on each side of the wooden box 1. The bars in the top row are thinner than the bars in the bottom row to reduce weight and cost. The bars in the lower row are wider to withstand the greater lateral forces due to the weight of the rubber blocks or sheets within the framing crate. The upper row of bars may each be approximately 25 IDI11 wide, and the lower row of bars and horizontal bars may each be approximately 43 am wide. The strut member 2 is formed from a metal bar with a thickness of approximately 3a+m, and thicknesses considerably less than this (eg 1mm) may not be suitable.

Because.

In that case, the thickness of the rods of the support 2 is not strong enough to support several stacked wooden boxes with a total weight of up to 6 tons.

If the strut is significantly larger than 3mm, i.e. 6fIII
In No. 11, the nesting depth of the wooden frame boxes on the side to be nested becomes shallow, which may reduce the packing density of the wooden frame boxes to be nested.

The vertically oriented rods may be tapered.

That is, the width is reduced toward the bottom of the framed wooden box. This taper reduces interference between the bars of each framing crate when nesting one framing crate into another, especially if some of the bars are bent. effective.

A hinged support member 12 is provided in the rim 4 near each of the four corners of the framed wooden box 1. As shown in FIGS. 6a and 6b, each hinged support member 12 has a width of approximately 88 mm.
mm blade 14, mounted by a hinge around a pin 17, the pin 17 passing through one end face of the blade 14 or welded against said end face and extending in the ratio of a pair of hinge supports. The hinge support 18 is reinforced by bridging ribs 19, which are either integrally formed by casting or welded to the bottom of the hinge support 18. The support body 18 is 20
At this point, it is joined to the recess of the rail 4 by, for example, welding. The hinged support members 12 are located at the corners of the framed wooden box for maximum strength. The L-shaped cross-section member 2 absorbs some of the dunnage and prevents the rim 4 from distorting when a large dunnage is applied to the framed wooden box.

The pin 17 is positioned relative to the recess 24 defined by the support 18 and the rib 19, and the blade 140 is dimensioned to penetrate the recess 24 without extending laterally and outwardly from the rim 4. (6th
(See Figure b and Figure 8). Blade 14 can be moved manually from one state to another.

When initially loaded into a framed wooden box, there is space around the rubber blocks or sheets. Since rubber creeps slowly, the rubber will occupy this space over time. - In order to be able to carry more rubber by the frame crate, it is necessary to first load the frame crate so that the height of the rubber blocks protrudes above the top of the frame crate. The laying of a number of tubes is obtained by placing a load of 1 to 3 tons in a framed wooden box and leaving the dunnage in place for a period of 2 to 4 hours. The space is then filled by the flow or creeping of the rubber. This process is
It functions as the number of cylinders in the wooden frame box, keeping the cargo stable during transportation, and at the same time increasing the cargo capacity of the wooden frame frame. When the number of cylinders is completed, the height of the rubber inside the wooden frame box is no higher than the top of the wooden frame frame. This allows the wooden frames to be stacked on top of each other. FIG. 3 shows the condition in which the hinged support members 12 extend across the load in the framed crate 1 towards each other. In this position, the hinged support member 12 supports the bottom of another framework crate stacked on top of the framework crate 1, and the blade 14 (even if the lower framework crate is empty) , is arranged to receive the legs 8 of the upper frame wooden box. Upper surface 21 of blade 14
is approximately 20 mm below the upper surface 22 of the rim 4;

Provides lateral support for stacked framed crates. In this position, the hinged support member 12 does not extend beyond the outer end 23 of the rim 4. As a result, the rims of the wooden frame frames that touch 1w4 can touch their edges without interfering with each other, making it possible to optimally load cargo inside the hold of a ship, container, or freight car. This feature is important considering that hundreds or even thousands of crates may be loaded at a time into a ship's hold, container, or freight car.

The frame wooden box is 700 mm long x 355 m wide.
Since it is intended to transport 30 to 40 blocks or sheets of rubber of the order of m x 180 mm in thickness, 1 As a result, the height is approximately 1100 mm,
Preferably, the dimensions approximately correspond to a width of 1130 mm and a length of 1447 mm. The structure of the wooden frame box is not only able to withstand approximately 1 to 1.261 inches of rubber dunnage, but also consists of vertically stacking wooden frame boxes filled with 4 to 6 pieces. It should also be able to withstand a transportation period of, for example, 50 days.

Additionally, framed crates embodying the present invention facilitate rapid loading and unloading of rubber and are therefore highly advantageous for the transportation of rubber blocks or sheets.

FIG. 8 shows a negative set of nested empty frame boxes 1. FIG. The thickness of the material used to construct the framed crate and the relative dimensions of the legs 8 and rim 4 are such that optimal nesting of the framed crate is obtained. That is, the nested frame crate projects from the top of the receiving frame crate by a height substantially equal to the thickness of the rim 4. The blades 14 of the stacked wooden boxes protrude slightly from the sides of the wooden box 1 due to the relative positions of the respective rims 4 of the nested wooden boxes and the receiving wooden box l. The extent of this outward lateral protrusion is minimized by the shape of the hinged support member 12. The degree of protrusion can be as small as possible, for example 15 am, so as to optimize the packaging of the nested crates in the holds of ships, containers or freight cars.

The invention is not limited to the specifically described embodiments. Accordingly, the shape of the blades and the means for retaining them to the rim of the framing crate can vary, as can the arrangement and number of blades. It is also possible to change the dimensions of the blade.

[Brief explanation of drawings]

1 is a side view of one of the wooden frames of the present invention, FIG. 2 is an end view of the wooden frame of FIG. 1, and FIG. 3 is the wooden frame of FIG. 1 in the first state. The plan view of the box, FIG. 4, is a sectional view taken along the straight line X-X in FIG. is a bottom plan view of the framed wooden box of FIG. 1, FIGS. 6a and 6b are enlarged partial views of the hinged support members in the r-stacking j and r-nesting j positions, respectively, and FIG. FIG. 8 is an enlarged partial perspective view of the leg of a framed wooden box viewed in the direction of arrow A in the figure, showing an empty framed wooden box nested within another identical framed wooden box. It is a diagram. 1... Frame wooden box, 2... Support, 3... Bottom member,
4... Rim, 5... Square gusset, 7... Bottom, 8
...Legs, 9...Wall structure, 10...Horizontal bar, 1
2... Hinge connection support member, 14... Blade, 17
... Bin, 18 ... Hinge support, 19 ... Bridging rib, 23 ... Outer end, 24 ... Recess.

Claims (11)

[Claims] (1) A framed wooden box used for transporting blocks or sheets of rubber or similar materials, which framed wooden box:
having one bottom surface, a side wall extending upwardly and outwardly and terminating in the rim, and at least one support member connected to the rim by a hinge; when said member extends towards the opposite side of the overlying framed crate, the same overlying loaded overlying overlying crate rests on the rim of said overlying framed crate, and said support member extends toward the opposite side of the overlying framed crate; From the first condition to aid in support, members extend outwardly and downwardly from the rim to nest the empty upper frame crate into the aforementioned frame crate such that the bottom surface of the upper framework crate extends outwardly and downwardly from the rim. A framed wooden box, characterized in that it is pivotable into a second state in which it is brought into close proximity to the bottom surface of the framed wooden box. 2. A plurality of hinged support members are present, each hinged support member being located at or near a corner of the frame box having a rectangular cross section. frame wooden box. (3) A framework according to claim 1 or 2, characterized in that each hinged support member comprises a support blade hingedly mounted between a pair of supports of substantially the same cross-sectional shape as the rim. wooden box. (4) the support blades are hinged about an axis of rotation parallel to the longitudinal axis of the rim, and in the second position the support blades are substantially vertical, facing outward and between the supports; A framed wooden box according to claim 3, characterized in that it is capable of extending downward. (5) The framed wooden box is provided with legs, and suitable hinged support members are installed and arranged, and in the initial state:
A framework according to any one of claims 1 to 4, characterized in that the legs of the upper loaded wooden frame can be placed on the support members of the receiving side wooden frame. wooden box. (6) A vertically stacked column of loaded wooden boxes according to any one of claims 1 to 5, wherein the rubber is allowed to settle until its height is lower than the rim of each individual wooden box. Further, the hinged support member is in the first state and extends toward the center of the crate and contacts the top surface of the load, and furthermore, the bottom surface of each stacked crate is A vertically stacked column characterized by resting on a hinge-connected support member of a lower framing crate. 7. A vertically stacked column according to claim 6, characterized in that: (7) the rim of the frame box into which another frame box is placed provides support to the lower bottom of the frame box into which it is placed. (8) The vertically stacked column according to claim 6 or 7, wherein the column height is the height of a maximum of six framed wooden boxes stacked. (9) A method for assembling vertically stacked columns according to claim 6, 7, or 8, which comprises placing the hinged support member in the second state and placing rubber blocks or sheets on the frame wooden box. Wait for the load to settle until the dunnage is completed, put the hinge connection support member in the first position, and then add another identical framed wooden box, with the bottom of the upper framed wooden box facing down. A method characterized in that it is a vertical stacking method consisting of placing on a framed wooden box so as to contact a hinged support member of the frame. (10) A vertically stacked column of empty wooden frames according to any one of claims 1 to 5, wherein in this stacking, one wooden frame is housed in another wooden frame, and each wooden frame is stacked vertically. The hinge connection support member of the box is in the second state, there is a space between the bottom of the upper framed wooden box and the floor of the lower framed wooden box, and the upper framed wooden box is substantially at the height of the rim. A vertically stacked column that protrudes above the lower frame wooden box by the same height as the frame. (11) The vertically stacked column according to claim 10, wherein the protruding length of the blade of the hinged support member does not exceed 15 mm.